So me and my boyfriend were having sex the other day and he proceeded to put his thumb in my butt... usually I push him away and I kept doing it everytime he tried to do it but I just let him go this one time... it actually turned both of us on a lot & he actually started going rougher and was moaning... I guess it really turned him on lol. But it felt good which I wasn't expecting.. Any other couples like the thumb in the butt? Definitely letting him do that from now on lol.