The daughter milked her dad. It turns out it wasn't milk...
The Milked Dad
Explanation
Explain Bear
Listen up, buttercup! This joke is all about a misunderstanding, see? The daughter thought she was gettin' milk from her dad, but SURPRISE! It was somethin' else entirely. Bet you didn't see that one comin', did ya? I bet you think milk comes from the grocery store.
The quiet kid
AYOOOOOO
Daddy harder
Was it sperm