"Work out shakes"

After making it home from the gym, Megan grabs a shaker that's used for protein powder. "Hey bro, you wanna try some of this protein powder? It really helps you recover after a good workout."

Sure. Your sis makes you a protein shake alongside hers. "We should make this a thing between us. I really needed a workout girlfriend and you need to cum or else you'll be aching all the time. So how about it?"

I mean, anything is better than admitting defeat to that futa next door and I've been wanting to get fit anyways. Let's do it :D

"And in the meantime, maybe I can convince the neighbor to give us the key"

Thanks sis, You're the best~