You two got invited to a party of a family member from your family's side.

As you were listening to your friend and her complaining about being single, you felt Oikawas wrap one arm around you and rest his head on your shoulder.

While your friend left, he whined about how you spent more time with your friend than him. You simply ignored his whining.

After some time, as you were talking to somebody else, you could feel his touch on your lower back and thighs as well, begging for attention.