Myself and a friend have regular "training sessions", she want to be the perfect sub.  We have spoken about including others but never tried untill now.
This particular meet I arrived with another friend to surprise her. Our new friend is a georgous newbie gal, straight as an arrow but curious to watch.  This particular meet she wore a black dress going down to just above the knees.  
Walking into the house, the door was open. We heard my girl in training in the bedroom getting herself ready the way I taught her.

We walk to the room and our "new friend" is taken back suddenly as she did not expect to see what's Infront of her so soon.

My girl in training, blind folded, relieving herself..  

I immediately jump in and assist her.

My hands moving down her thighs I tell her not to stop. I move lower and gently nibble her inner thighs before circling my tounge on top....Newbie still standing there watching with big eyes!!

I show her a chair or place to sit, She sits down and watches.

I go down again on my girl in training, nibbling deeper as my finger slowly glides in and out. My eye catches movement on the side and I see newbie with her legs semi open gently rubbing herself over her underwear as she watches. 

I did not expect that!!! This turned me on even more now. 

I get up and remove my pants leaving my bulging boxers on. I pull out my massage gun, and place it on my girl in training, vibrating wildly it don't take long for her girl little squirt.

I remove the massage gun glance over and smile at newbie. I hand it to her and get back to my girl in training.

I hear it turn on followed by heavy breathing.

I ignore and get back to my girl in training and slide my fingers deep massaging her g-spot, building her up again as newbie watches and enjoys the machine.

I keep going, teasing, nibbling, playing and toying. She climaxes again, a little harder this time. As she catches her breath I stand up, I walk over to newbie and I whisper

" try this".

I put the  toy on maximum power and vibration....she looks at me and smiles... As I lean lower I place the round vibrating head between her thighs.

I whisper "better?". She responds "much", in a deep breath. She looks in my eyes I can see the enjoyment. Without thinking her entire look of excitement draws me in and I kiss her lips, our tounges clash before moving back in nibbling her lip.  I move back to my girl in training, I kneel beside her as I lower my bulging pants. 

Girl in training opens her mouth and does what she does best. Moving my hips back and forth enjoying every moment.

I look at newbie, Signaling her to come over for a better view. Once again I was shocked!! Newbie kneels and goes lower, placing her head close to girl in training. Newbie reaches her hand over and grabs the bottom of my shaft, I take deep stokes in and out of girl in training, Suddenly newbie moves her head closer! I pull out and move forward. Newbie directs it straight into her mouth.

Shocker!!

A few seconds then places it back into girl in training. It swops a few seconds at a time between the two a couple of times, Then newbie moves closer. Girl in training feels this and they both run there tounges up and down my shaft at the same time, there tounges clashing around it.

For a straight girl this is quite a move. 

This is dangerous for me! I pull back. Newbie sits up, I dare her to kneel. She kneels on the bed and I whisper "closer" As she moves closer she has her legs on either side of girl in trainings head.

She lowers herself slightly and girl in training takes her first nibble of newbie. I lean in and kiss newbie and girl in training kisses her below. I leave them for a second as I get up and walk behind newbie.

I slide her dress off over her head.  I stand behind her and move my hands around holding her breasts firmly as she gently moves back and forth over girl in trainings tounge.

Newbie feels me up against her, she leans forward, my tool gently rubs back and forth between her lips as girl in training keeps them moist and licking the top of her lips.  

Girl in training then moves her hands up and makes me enter newbie. Just a few gentle strokes then puts it in her mouth, and repeats.

She loves the taste of us both mixed. I move back again, I go down, I whisper "your turn". Together me and girl in training nibble newbie, our tounges now clash around her perfect lips. I get up again and place girl in training on the edge of the bed as I take her from behind. Newbie kneels next to us, watches, I let go. Newbie has a first hand close up view of a creampie.

Jokingly I say to newbie  "next time we let her lick it off your perfect breasts".. newbie giggles.. anytime.