Girls got excited while riding stallions, so it's not surprising that when they saw those guys they jumped on them. Well, their chosen pose is exactly what I pointed out in the previous sentence. It has always been a mystery why so many girls love horses, actually this video partially answers this question.
And the nerd turned out to be quite good! I thought he was so thoroughly licking her asshole. Turns out he's an anal gourmet. He's been shoving it all the way up her asshole. Apparently this wasn't the first time the lovers had tried it - the bitch didn't even twitch when he came in. She's got an asshole that's big enough for this thing. I'd spank her buttocks to make her swing better. He'd do the right thing with his mouth. Let her get used to being a slut.
With such data it should be in a beauty contest, and there are more spectators than near the garages and the prizes are better than a dick in her pussy.