I've actually got The Erotic Witch Project and Gladiator Eroticus: The Lesbian Warriors. They're brilliant. Hours of amusement. I might get one out now actually. They're better than most comedies, they really are. Especially Gladiator Eroticus - it's genius. It actually is Monty Python-esque.
And then you've got the likes of Battlestar Orgasmica, A Midsummer Night's Cream, Beaver and Buttface, The Sexorcist, Beverly Hills 9021 Ho, Titty Titty Bang Bang and my personal favourite Raiders of the Lost Arse.