-I remember a seemingly crazy woman offering a couple some devils food cake and she did that whole wicked laugh thing
-Some people were at a party then a girl asked a boy if he wanted to touch her breasts, then her breasts ferociously engulfed his hands
-Two people were in the back seat of a car making out then a random hand came up and started groping the boys private area but his eyes were closed so he thought it was his girl's hand
-I think there were some evil nuns in this movie too
-There was a younger girl in a car by herself then someone came and scared her with a wolf (or something) costume
I saw this when I was little back in the 90's so the details are kinda foggy
I think that "Mausoleum" 1983 had biting boobs.
thanks but that wasnt it
Posey, the 1988 movie High Spirits features evil nuns and over-sexed female ghosts with ample bosoms. There's also a scene featuring sex between a human and a ghost. The movie possesses many of the attributes you describe. I don't know about the wolf costume, but there are other costumes worn at times.
The 1982 movie Porky's also has many attributes you describe, but, sadly, there are no evil nuns that I can recall.