Run into Sara in the bathroom

I go up to the twins bathroom to change. The door is ajar but I don't hear anything so I swing the door open. Sara is standing there in just a pair of running shorts. Her small pert breasts are completely on display.

"Sorry, sorry." I say as I stare at her cute little pink nipples that are sticking out like little points from her breasts.

Sara slowly turns her head towards me and smiles. "No problem, just stay here a sec and I'll be out of your way." She proceeds to pull her sports bra on over her head. I stand there in awe as I watch the lift of her breasts as her arms are over her head, and her thin flat stomach as she pulls her clothes into place.

Still speechless I stand there as she places a hand on my chest and says. "All yours," and proceeds to head downstairs.

After a few more stunned moments. I shake my head and get dressed.