"Mmm, daddy, your cock tastes so good"

Drew stopped just around the corner after hearing that, and peered around to see the scene. The couch faced away from the doorway and all he could see was the back of his father’s head. Tanya’s voice sounded like it was coming from in front of him. He heard a few sucking noises before his father chimed in.

"Tanya, please, you shouldn't be doing this" "Mmm, but it feels so right, daddy. Doesn't my mouth feel good?"

Drew's cock jumped at this confirmation that she was blowing their dad. That didn't take her long!

"Well, of course, but I'm your father!" "Don't worry about that, daddy, just let me help you feel good. I want this so bad. Just let me suck your cock until you explode" "But… mmm"

He knew his sister was a great cocksucker from earlier, and it apparently was taking the fight out of him fast (what little there was of it if she was already blowing him!). The moans from both of them made Drew's cock even harder than he thought possible.

Well, Drew thought, it seems like as good a time as any to interrupt!