Step Sisters Panties Get Wet While Wrestling Over Remote Control

Sometimes I can't help but piss off my little step-sister. Like coming in and taking the remote from her. It's just fun because she is crazy feisty and she's always happy when we end up wrestling and I get rough with her. I didn't realize how much she liked it until she soaks her panties when my hand goes around her throat. I mean she tried choking me first and I was just playing but the look and moan that sneaks out of her isn't pain or anger. WTF now my dick is rock hard. Is this what she's into? My ex loved being manhandled and dominated but my little step-sister? I mean, she's almost 19 and...I can't help myself, if this is what she's into no wonder she likes when we rough house. It is amazing but I see her snap out of it as she looks at the cum covering her, she's totally embarrassed but she's the one that told me to cum on her.