Both lena and cat would buy a Sybian and strap kara down onto it as a way to tire the kryptonian with seemingly limitless stamina out. Possibly both of them at the same time tie her down onto it. While they lazily kiss and work each other up as kara helplessly watches, being oh so good and taking whatever they throw at (into) her. Supergirl has to be everything pure and good in this world but here Kara can be oh so wicked if she wants--and the sounds she makes as she watches the two of them kiss can only be described as wicked. It’s so hard to tire out a Kryptonian, but so much fun for Cat and Lena, especially when they get to gang up on her and get to have Kara, a verifiable god, make herself vulnerable to them and show them absolute trust and certainty that they’ll take care of her. Who needs to be evil when that’s the ultimate power trip?