they both work fine. do as the second post instructs.
that said, they are kinda weak-- both have watermarks flashing by the whole time...
the first is a quick shot at the very end, the second is a dribble followed by a reacharound
the orgasm doesn't need to be caused by the anal sex; it could be from a vibrator or masturbation, for example. i'm curious if there are any shots out there of an anus clamping down/contracting around a cock as the girl cums. any help?