The Virgin Next Door (Part One) (1974)

Howie has a thing going for him. He's bored a hole in the wall so he can see into the next apartment ... the apartment of a luscious, vivacious broad ... he likes to watch her undress and jerk off at the same time ... but then he becomes brave enough to visit her ... finds she is a virgin, but willing to try sex with him ... and here he teaches her all he knows with his vast resources of experience ... she takes everything to her head.