She could hear him coming up the stairs, she was determined not to stop, to let him catch her. She knew no touch meant no stimulation but she was ready to argue her case that the sheet was in the way. An argument she knew she’d lose. 

But that was the point. 

He’d promised to make it even harder if she cheated, and that’s what she wanted now, too shy to ask, but this was her way of telling him. Perhaps he’ll say it again, those words that she secretly repeated to herself all day long, ‘Maybe I’ll never let you cum again’.