My guess is they were initially duped and thoroughly enjoyed the blowjob by "her". And when they realised he was a dude, it didn't matter anymore because they were too far gone, needed to release, hence fucked his asshole. Win win for both parties.
My guess is they were initially duped and thoroughly enjoyed the blowjob by "her". And when they realised he was a dude, it didn't matter anymore because they were too far gone, needed to release, hence fucked his asshole. Win win for both parties.