After a few months of your agreement, Tara now feels very comfortable around you. You walk in on her fully naked as she does some homework. She asks if you can help her and you say you will but she'll have to show off her body and play with herself a little bit. Tara happily agrees and she shows off her body a little bit before she spreads her legs and rubs herself. She moans a bit and then says she better do her homework. Later that day you see Tara, still nude, on the couch and she seems a little stressed out. She explains she's in danger of losing her grant for her grad school research because of one bad grade in one class. She knows how amazing you are with computers and hacking and she asks if you would be able to hack into her school's system to bump up her grade a little. Tara says that in return you could extend the arrangement of her being naked for you but since this is so dangerous to do you say you'd want more in return from her. You tell her she'd have to be your secret submissive girlfriend for the rest of the year. Tara agrees and you tell her to hump the armrest of the couch while you hack in and change her grade. Tara seems a bit embarrassed at first but she soon becomes comfortable as she grinds the couch. She moans as she rubs her clit on the couch and her boobs bounce. Later that week you walk into Tara's room and she is laying on her bed completely nude. You're a bit upset with Tara as she forgot your favorite soda. Because of her mistake and the agreement for her to be your submissive gf, you tell Tara her punishment is that she has to be spanked. Tara bends over the bed and you give a few good swats to her butt. Tara winces but she also seems to like it. Spanking Tara turns you on so you tell Tara to hump you. She gets on top of you and rides you. She moans and talks about how bad she feels doing all this with you behind your parents back