A bulging situation

I look down at the towel and instantly realize the problem. I feel my heart stop as I see the huge bulge in the front of the towel. I'm speechless. My sister has already left for the kitchen and Alice is just leaning against the sofa, arms crossed, enjoying the view.

“Looks like ya didn’t finish in there.” Alice teases, eying up my bulge.

“I... I wasn’t... masturbating” I say the last word hushed, hoping my sister isn’t listening in on us.

“Maybe...” Alice keeps her smug grin and isn’t look away for even a second as I keep blushing and squirming under her gaze. “I guess ya just like me watching then, don’t ya? Don't worry, though. I think ya look better naked and erect. Hee hee!"