"H-hey, Daddy!" my daughter said when I walked in the room. She looked like she was up to something.
"Hi, honey…" I replied. "What’s up?"
"Nothing, why do you ask?" She jumped on the question. She was sitting in a strange position, too - as if she was hiding something under her shirt besides those nice, big tits…
"Hon, daddy’s feeling a little horny tonight. Would you mind showing me something?" I ran a hand up her leg. We’d been having sex for the past year, and ever since she developed into such a beautiful young woman she’d been initiating certain fun activities fairly regularly.
"W-what do you want, Daddy?" She was playing dumb. I reached for one of her lovely breasts, but she pulled away.
"What are you hiding from me? Show me your tits!" I sharply said to her. I saw a brief grin flash across her lips - she loved these games we’d play.
"No!" she giggled.
"Show me!" She stopped for a second, then pulled up her shirt to reveal long lines of cum running over her stiff nipples!
"Ah! I knew it! You’ve been cheating on me with David!" David was her brother, and I thought something was up for a while, but here was the proof! "Well, we’ll see what I can do about that! Sounds like someone’s going to get punished later for cheating on her daddy!"