Before the dinner with the dads (Scott and Stiles)
Stiles [bursts into Liam’s room]: Hey Liam, we brought you…
[Liam and Theo under a blanket, the t-shirts and the pants on the floor ]
Liam: Oh my gosh, dad, knock.
Stiles: I am so sorry. [goes out of the room]. So you are sexing each other, uh?
Liam: DAD! I told you they were coming back early. [whispers] This is so embarrassing.[while dressing up]
Theo: I don’t think he realized, he never realizes.
Stiles[ knocks the door and comes in]: Did you use a condom?
Liam: This is the worst day of my life [throws pillow to the door and hides under blanket]
Theo: No Mr. Stilinski, we were only on the second base, your son was too shy to even get to the third.*
Stiles: Good. So… [to Liam] you still virgin?
*To the people that don’t know:
First base: mouth-to-mouth kissing (French kiss).
Second base: skin-to-skin touching/kissing breasts (not here) erogenous zones through (or below) clothes, or manual stimulation of the genitals.
Third base: touching below the waist (without sexual intercourse), or oral stimulation of the genitals.
Home run: full sexual intercourse.