College Men Having Sex with Men: Are They Exclusively Tops or Bottoms? (No)

Editorial note: Good bye to two bloggers who got their phds and hello to two new bloggers! When we began the “Sexuality and inequality research” blog in 2014, it was a joint effort by Paula England (professor), and Jonathan Marc Bearak, Mónica L. Caudillo, Jessie Ford, and Abigail Weitzman (doctoral students), at NYU. Jonathan and Abby have graduated and are off to jobs, so they’re done blogging with us. Paula, Mónica, and Jessie continue and are joined by two new NYU doctoral students: Emma Mishel and Eliza Brown.

Log onto any website where men who have sex with men (MSM) go to meet partners, and a key classification is whether a man is a “top,” a “bottom,” or “versatile.” These terms refer to whether, when having anal sex with men, a man prefers to penetrate, to be penetrated, or is open to both. But are these durable roles?

We examined how much college MSM specialize as tops or bottoms. We find that, among college men who have ever had anal sex with a man, most have been both a top and a bottom sometime, most have done both across the course of their most recent relationship, and some have done both within a single date or hookup.

We use the Online College Social Life Survey (OCSLS) that surveyed more than 20,000 U.S. students in 21 colleges and universities between 2005 and 2011. We use data from all 493 men who have had sexual interaction with men*, and on the 826 events with men on which these men reported. The types of events respondents were asked to report on were their most recent hookup, their most recent date, and the most recent time they had sex within their most recent (or current) relationship of at least 6 months**.

First, we found that only a small minority have only topped or bottomed. Of the men who have ever had anal sex with a man, 14% said they had only topped, 10% said they had only bottomed, and the vast majority, 77%, said they had done both.

Among MSM who have ever had anal sex, percent who have only topped, only bottomed, or done both

Among MSM Who Have Ever Had Anal Sex, pct Who have Only Topped, Only Bottomed, or Done Both _NoBorder

While the graph above shows that most MSM have tried both roles at least once, it is still possible that men tend to take only one role within any given relationship. In fact, this is true for 30% of men whose last relationship of at least 6 months in duration was with a man. But a large majority, 70%, played both roles with their partner sometime during the relationship – that is, they were both top and bottom at some point in that relationship.

 Our most striking finding is shown in the next graph: often men are both top and bottom within a single event. In MSM events that involved anal sex, over 25% entailed both partners being top and bottom in that event. Men did both in about 20% of hookups and dates***. They were even more likely to have been top and bottom the last time they had sex in their most recent relationship — 41% of the time. Thus, combining the previous graph with this one, we see that 70% of MSM relationships involved the man doing both sometime across the duration of the relationship, and 41% of specific times they had sex with relationship partners involved doing both.

Among MSM events involving anal sex, percent in which men both top and bottom, by type of event

Among MSM Events Involving Anal Sex, Percent in Which Men Both Top and Bottom, by Type of Event _NoBorder

Everything we have shown above is limited to events involving anal sex, or men who have had anal sex with men. But how common is anal sex among college MSM? The graph below shows how often it occurred in specific events. Only about a fifth (19%) of events men labeled dates involved anal sex, compared to about a third (34%) of hookups (that difference is statistically significant). So most college MSM hookups and dates don’t involve anal sex at all. They generally involve oral sex (results not shown). But a majority of times when men have sex with a male relationship-partner, they do have anal sex — in 63% of cases. These findings bear some similarity to what we find for heterosexual students — that students are more likely to have intercourse in hookups than dates, but most likely to do so in relationships.

Percent of MSM events that involve anal sex, in hookups, dates, and relationships

 Percent of MSM Events that Involve Anal Sex, in Hookups, Dates, and Relationships_NoBorder

In sum, the clear message of our analysis is that being versatile is common among college MSM — most men have been both tops and bottoms sometime, most relationships involve switching between roles, and a significant minority of single events involve both, especially when the event occurs within a relationship.

If you are a researcher and would like to have the OCSLS data for analysis, contact Paula England at for information on how to download the data.


* We operationalized having had “sexual interaction” with a man as follows: the man reported that their most recent hookup, date, or relationship while in college was with a man, regardless of what happened sexually in the event, or he reported ever having anal sex with a man. Of the 493 men who have had sexual interaction with men, 64% identified at the time of survey as gay, 15% as bisexual, 7% as unsure, and 14% as heterosexual.

** We have up to 3 events for each respondent—their most recent hookup, date, and the most recent time they had sex within their most recent (possibly current) relationship. We will have less than 3 events to analyze here for each man who has had sex with men if he has never had one type of event (he has never hooked up in college, or hasn’t been on a date, or been in a relationship), if he skipped the question on the survey, or if one or more of these most recent events he reported on was with a woman. Here we only use events with men that men report on.

*** When asked about their most recent hookup, the question specified “with someone you were not already in a relationship,” but otherwise said to use whatever “definition of hookup you and your friends use.”

Comments 3


March 19, 2018

I enjoy with have sex with men and women.

Hugo Allen

September 19, 2020

Hi google


September 7, 2021

I wish there was an article on this blog about men's same-sex sexuality that was as interesting to read as the one called "Women's queer sexuality in college". In fact, considering this article and the one about women are based on the same dataset, there was no reason why the article on male homosexuality shouldn't be as comprehensive, instead of painting itself over to a corner by picking such a narrow (and frankly tired) subject.

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