In this taboo gay encounter, a young man braces himself for an unusual toothbrushing session. His father, the 'dentist,' insists on a thorough cleaning, but the gleam in his eye suggests he's got more than oral hygiene in mind. He starts with the usual motions, but soon his hand wanders, feeling the son's ass through his thin pajama shorts. The son, initially shocked, grows aroused as his father's exploration becomes more brazen, eventually replacing the toothbrush with his throbbing cock, fucking his son's ass raw while he rides him, culminating in a messy cumshot.