Kelly gave you her panties

Kelly had just said that, as you see her putting both hands under her dresses skirt. She fiddled a little on her hips, then she pulled a small piece of white cloth down her legs. You were totally surprised by her suddenly taking off her panties, that you didn't really noticed how she took your hand and put them into it. "Please take good care of them. They are one of my favorites."

You looked at the light white bundle in your hand. You unbundled it with both hands and opened your eyes wide. What you was holding in your hand was just a lacy white triangle with two strings going to the sides and one string down, all three meeting in one place in the back. It was a lacy white G-string. Wondering you looked at the head nurse.

"I know you are a boy and these are a woman's." She said in a saucy voice and stepped behind you. "But they are the only ones I have at hand at the moment." You could feel how she presseed her two huge breasts against your back. You got nervous and aroused by Kelly's sexual advances and felt your penis twitching a little inside of your underpants. And that didn't got better as you felt one of her hands rubbing on it. "I know you have stared at me and especially my huge tits." She breathed into your ear while she kept rubbing your erection. "So why don't we make this into a little game between us? You wear my panties for the day, and afterwards I will give you a reward you and your friend will love?" She kept on rubbing your erection until you let out a light moan.

Kelly let go of your erection and put her hands on your shoulders. She quickly turned you around, you seeing her beautiful face for a second. Then she knelt down and quickly pulled your underpants down. Automatically you grab the dresses skirt and pull it down to hide your genitals, which made you look even more girly. But Kelly looked up to you and gently pushed your hands up to lift the skirt. You felt embarrassed showing your erection to a stranger, but the head nurse smiled and gave it a short, gently stroke. "We are going to have so much fun over the next six month." She let go of your penis and took her panties out of your hand. She held them near the floor and you stepped into it. Kelly pulled the string up.

"Nice, very nice." She said looking at the small lacy triangle barely covering anything of your genitals. "I knew they would look good on you." She stood up and put her arms around you. "Just one last pull ..." She grabbed the G-strings strings on your hip and suddenly pulled them up. You yipped a little as you felt the string digging deep into your ass. "Now they fit perfectly. A string must always dig into ones ass."

The string felt strange. It barely covered anything, almost felt like it wasn't there, and digged into your butt crack. But the lacy material also felt nice on your erect penis and testicles.

You were standing in the changing room just for around one minute getting clear about how the G-string felt. You didn't noticed the head nurse putting a white nursing cap on your head, using two hairclips on it to fixate it, and putting a name tag on the dresses left chest. "Now you are ready." She took your hands, made you let go of your dresses skirt and dragged you out of the changing room. "Then lets get back to work, nurse Alex."