Alice

Released in 1991, this OVA revolves around a mad scientist and the woman that betrayed him. Her unfaithfulness causes the scientist to turn her into a bionic sex machine that desires to please her man completely. However, she still remains unfaithful, and it is up to the scientist's son to track her down and exact revenge. This title has yet to see a legitimate R2 DVD release, but you can find legitimate VHS versions floating around on Y! Japan auctions.