Some mild experimentation

Theresa leans back against you with a sigh. "Mhhh, I love it when you fill me up. Makes me feel so warm and full." She wriggles a bit against you as you absentmindedly fondle her breasts. The show continues, but you are only half paying attention, lost in thought about how you got here and what you want to do from here. You realize you don't really need to go to school if you don't want to. You can just claim anything you want. A job just seems silly now. If you really need something done you could just claim people... The thought of just taking away peoples free will for your own selfish ends makes a confusing mixture of nausea and arousal spread through you for a moment.

Your down time is almost over and Theresa moans as she feels your cock start to expand inside her again. You almost lose yourself in the sensations of her hips grinding on your lap but your thoughts drift to how all of this would be a problem you could just pretend didn't exist if not for Theresa constantly pushing your buttons.

Almost to prove a point to yourself you grab and tweak Theresa's nipples hard, making her yelp and stop moving. "Bubby, I was only joking earlier. Y-you don't have to..." You immediately feel bad at the quaver of fear in her voice.

"Im sorry sis, Its just you keep pushing me to do whatever I want." You say as a feeling of shame washes over you.

Theresa lets out a little snort as she starts to gently bounces on your lap again. "You can silly. Although maybe just warn me beforehand... Or you could just order me to like having my nipples abused. Then you don't have to worry about me..." She says as she slowly speeds up. "C-cause -ah- you know I will -mhh- love it. Oh god yes, fill me up even more."

You weren't sure you would be able to go again this soon but Theresa's enthusiasm quickly gets you back to feeling amazing. You think a bit about ordering changes in personality and how you could totally order Theresa to stop pushing and pretend none of this happened. You think back to how it was before, with her being cold and distant, mocking you. It shames you a bit but you don't want to go back. On some level you are loving this power. And its not like you don't have some mental orders you placed on yourself.

You say with a grunt of pleasure "-Mhh- fine! lets try it your way. You will be a masochist." Theresa lets out a throaty moan as she grabs your hands and places them back on her breasts. "Oh, yes, Master I am your toy. break me." You tweak her nipples again and her pussy immediately clamps down on you as she moans "Oh god, harder. Bruise them." You really squeeze and pull on her nipples and Theresa goes absolutely wild letting out loud moans and spasming on you.

You are kind of scared of actually going too far, but luckily the decision is removed by your climax and your seed getting pumped deep inside her. You both moan as Theresa gets filled a second time.

You both sit there panting for a while before Theresa says "Oh my god I have never felt anything like that before, it was amazing." You smile at her. "It was pretty good, but my hips are killing me. Its probably time for us to get cleaned up." She gives you a fake pout as she shakily stands up only to have a bunch of sperm drip on her leg. She giggles as she quickly slaps a hand over her crotch to stop any more leaking out. "Oof, I am stuffed full. see you in the shower." She toddles off while still occasionally leaking on the floor which makes you wince at having to mop later.

You go to pull your pants back on only to find that they are soaked through with sweat and... other things. Pulling them off in disgust you decide to just make a break for the bathroom.

Much to your dismay you run into your mom in the hallway. She looks mildly disheveled and surprised at your nakedness. "Oh, is this a new rule for the house? should I take my pants off too?" She lightheartedly jokes as she awkwardly hold the soiled pants in front of yourself in embarrassment. You let out a few awkward noises as you try and scoot around her in the hallway before she continues "Hah, the look on your face. You should run along to the shower and help clean up your sister, you really did a number on her."

She turns away and you flee into the bathroom.