When waking up in the morning, the lower half of the son's body is hot and rock hard with an erection. Seeing this, the mothers lustfully target the son's erection. The mothers sneak up while the son is sleeping, pull down his underwear, and confirm his erection. Delighted and embarrassed by its hardness, the mothers take his erection into their mouths and lick it sloppily and thoroughly. However, unable to hold back just with that, the mothers guide the son's erection into their own pussies.