Do other tween girls experiment at sleepovers?

Absolutely yes yes yes. me and my friends all did sexual things together, We taught each other how to masturbate, we fingered each other, licked each other out, watched each other masturbate, used electric toothbrushes as vibrators and scissored. It happened at every sleepover no matter which girls were there. I think the first time was when we were about 10 years old and went on till we were all about 16.

When I was 11 years old we moved to a new town and I went to a new school. The girls at school were very friendly and welcomed me and one girl Melissa said she was having a sleepover Saturday night and asked if I wanted to come. I said sure. My mom dropped me off Saturday evening. I think there were 7 of us which was a lot. Anyways after an evening of playing some games and eating pizza, one girl goes, OK LET’S DO IT! I was confused. Melissa says this is what we always do. You’re going to love it. I watched as they helped each other get undressed. I guess I kinda froze but anyway they all came by me and started taking of my clothes till I was naked like them. Melissa says haven’t you ever done this before. I was like No. she goes Relax it’s so much fun. The girls began fingering each other. Now I had recently discovered masturbating so I wasn’t totally lost but nobody had ever fingered me. Anyway after a while this girl Jodi goes, let’s show her.. she pushed me down on the bed and one girl was rubbing my nipples which got hard and two girls held my legs open and Melissa got between my legs and began licking me while another girl was rubbing my clit. I’d never felt anything like it. They made me cum so quickly. Then we took turns. I licked Melissa out and she said I was really good at it. For the next few hours we continued playing with each other. I couldn’t wait for the next sleepover. And basically every time I spent the night with another girl or several others girls, we would experiment and masturbate each other , licking, fingering. It was the best time.

We did it all the time. First time was when we were all 11 years old. It began at a sleepover when it was late and the girls parents had gone to bed. Here name was Lucy and her room was at the other end of the house. She suggested we all compare our vaginas which went on to us touching ourselves as we all watched each other. Then we began touching each other and there are a lot of wet pussys that night.
Next sleepover at Lucy’s house there were 7 of us. We did a lot of sex that night including some licking and a lot of fingering!!!! Actually it happened every time we had sleepovers till we were about 15.

OMG yes. In my case it started when I was 9 with my best friend Alexis at a sleepover. We were always fingering each other. Then when we were both 11 we were at a birthday weekend sleepover and late at night when the parents had gone to bed, we all stripped off and fingered ourselves and ultimately each other. Then at most sleepovers or even some random afternoons when hanging out we would do a lot of comparing of our vaginas and fingering. It didn't;t stop till we were all around 14 and hung out with boys. Having said that me and Alexis still masturbated each other when we were 16.

That's a definite yes!!!
Me and my friends often compared our private parts from about age 6, maybe 7. When I was 12 I went to a girls birthday sleepover and the main objective of the birthday girl was to finger every one of us and have us finger her. We began by comparing our boobs and vaginas and then the touching, fingering and rubbing began. One girl who was a year older and a bit more experienced got us to lick each other. A whole bunch of very horny girls together was quite a night.
After that, it was something we did at every sleepover or even after school some days. We'd meet at whichever girl had an empty house with parents at work and get undressed and do stuff together including fingering, licking and scissoring. By the time we got into boys we really knew how to pleasure ourselves and each other.

When I was 9 me and my friend next door (also 9) did a lot of masturbating together. One day we were comparing our vaginas and started playing with ourselves which quickly progressed to fingering each other.
So around the time we were 10, we both went to another girls birthday sleepover and late at night when we were all in pajamas and her parents had gone to bed, we all stripped off and compared our privates, then masturbated as we watched each other and very quickly progressed to fingering each other. After a while two of the girls got in a 69 and licked each other and then we took turns. It was really good.
From that night on every sleepover became a night of sex fun and exploration.
So yes, definitely tweens girls experiment.