That happens too. Idk maybe they do that so they can enjoy anal play without feeling "gay". Much like some girls enjoy rape fantasy so they can enjoy sex without feeling dirty since it was "against their will". Just like you enjoying using the strap on does not make you some bull dyke, him wearing your clothes and enjoying anal does not mean he is gay. I mean, isnt the whole idea of sex to feel good. Seems you both enjoyed it so do not think to much about it.
Alpha-Omega