Step daughters/Asexual/1st Wednesday/play here/see/show
You decide to try your luck today.
You take on your deepest and most serious voice and bluffs: "Well, normally you should already know what a penis is so exceptionally I'll show you."
Masha frowns surprised, now completely ignoring the tv and Sandra gets up and look at your jean, very curious.
You take out your pants and are now in your close fitting boxer short before the two girls, a bit stressed out and therefore not really hard yet.
Sandra has her eyes on your bulge still and puts her hand on it, trying to guess what it is. Masha bits her lower lip unconsciously.
Sandra: "Can we see it?"
You put your hand on yourself giving it a few stroke and looks at Masha. She says nothing but blushes a little.
After a final hesitation you decide to comply, you lift yourself up and remove your boxer. Sandra backs down a little and Masha gasps and frowns.