-Wet Summer Days--it has a great story, and the sex scenes are really sweet, but they're quite short. Suffice it to say that the 3-episode series could survive without them. Also, the last episode is a loli-thon.
-Moonlight Lady--the first three episodes have three rape scenes, one each. I, at least, can't stand the one in the first episode (during the ending). However, overall, it's quite sexy, and the character Tomomi, is easily about twenty times sexier than the protagonist. The story is decent, but the ending is...just plain weird. It's still worth a shot.
-Hatsu Inu--it's sexy and funny--
about a guy who falls in love with a girl who has an addiction to vibrators--yet she came on to him
. It's only 2 episodes, but it's pretty fun.
-Immoral Sisters (a.k.a., Ai Shimai)--there's some rape in here, but it's really well done rape, and the girls end up enjoying it...
-Wife Eater--The first episode has only ONE sex scene, but it's a good 'un. The second has a bit more, but they waver in quality...
That's all I can think of at the moment; I hope it helps...