International Journal of Offender Therapy and Comparative Criminology.
There is also research literature on heterosexual anal intercourse among drug-using subsamples, which has found a relationship between anal intercourse and both injection and non-injection drug use Bogart et al.
Doing grounded theory: Issues and discussions.
For example, some of the women agreed to have anal intercourse in exchange for money: I tried it a couple of times, but I got paid a very large amount of money.
White, Group 3 Catch me on my come down.
Other reasons noted by the women were that they desired anal intercourse; they wanted to please their partner; they wanted to avoid vaginal sex; the situation was an exchange or quid pro quo one; and situations where the woman did not specifically consent, either because of low self-esteem or coercion.