I wasn’t a pervert in that way, but seeing a breast nestled in a pretty bra with the filtered light though a blouse always got my mind racing and my...cock turning hard. Now I was enjoying the view of my breasts, my hard nipples so close to the slippery satin fabric, yet my cock did not begin to harden. I cupped my breast and the electric shock to my groin was immediate and if I continued I would not finish this project. I stopped as I noticed the sexiest panty I could have ever imagined a. ."That grabbed her attention quickly enough because she had been doing ... did he know? No he couldn't, she had been alone ... after all she had looked around before..."What did you see?"Again the answer came quickly enough."You know..."And then she knew that someone had seen her when she thought she had been sitting here alone in this chair at this carousal desk fingering herself beneath her skirt. She expected to feel embarrassment and even shame but though she awaited those sensations .... Tie me up, make me beg to cum" we all moved around and Cheryl brought up four ropes from each corner of the bed. She had sister lay on her tummy then we tied her hands and feet. She was spread eagle yet she had enough slack with her legs so she could get up on her knees. I thought that would be where we stopped, but Cheryl brought up two more ropes, these ropes where tied to Sister knees, so she in fact was tied in a kneeling position, with her ass in the air.Her face was on the bed, but her. R- I am sorry. Plz, don’t feel embarrassed. I won’t talk abt it.S- thanks.R- thanks to you for giving me a wonderful org.S- nooooooooooo. Stop it Rohan else I won’t talk to you.R- ha ha ha. Sorry. I was just teasing you. It’s fun to see you going mad.S- acha ji. We will see who could better tease the other.R- when?S- just in a while. Wait for a few minutes, I will be back.R- okAfter 10 minutes, she pinged me.S- send webcam invitation.R- ok(I sent her the invitation and in few seconds I could.