Though usually dudes spend much time talking about first anal action with their girlfriends and preparing those scared anal virgins to a world of new sensations, this dude decided to break that rule.
He paid his girlfriend a visit that night and seduced her into making sex during which he caressed her virgin anus with his tongue and fingers and that excited the chick so much that she begged him to continue. The dude simply could not say no to his hungry chick and that is why he fucked her asshole in several positions.
You can watch the video with these nasty experimenters at this site.