Armin:
Armin was shy at first, but started to become used to it. Now, he's not like a sex hungry guy, just because he got used to it. He just sometimes craves it like how Macronn craves chips.
Jean:
Yea... you guys do it like 4 times a week, soooo.... yea.
Eren:
Eren prefers to not have sex. He wants to still have the innocent relationship still, so he'll wait maybe 1 yr more? Maybe.
Levi:
Surprisingly! Levi's shy when he does it. You always have to reassure him that you respect his body and boundaries, and that his body is fine to you. He also questions about his shortness when you do it