your brother Mark was having a sleepover with his friend Zach. While your Brother was asleep you and Zach couldn’t sleep so you two went on a late night drive together to pass the time

you stopped at the gas station because his car was running low on gas, Zach had his arm draped over your car door and his hand was dangling next to your head. mindlessly you started playing with his fingers while he kept filling up gas

Zach: “Whatcha doin there?” he asked in a teasing tone