Keep groping them more

The girl still didn't say a word to me as she pressed her body tight to my own, but just kept smiling while I fondled her hips and buttocks under her skirt. She was obviously enjoying the treatment, and I could feel her hard nipples poking my chest through her shirt, just like my cock was pushing up against her thigh.

Then the young brunette turned around as well, giving me a nice view down her cleavage while she smiled and playfully slipped her arm around the waist of her friend.

Meanwhile my hand remained on her ass, and now I was groping them both as having full access to their lovely bootys. Both of them giggled and pressed back at my palms, while sharing some whispered words with eachother.

Then they gasped, delightfully, as you grabbed at the hems of their thongs and gently tugged them upwards.

They stood on their toes for you now, leaning hard on your chest, while you teased them both by making the fronts of their tiny underwear press up against their sensitive pussies.

From the looks of it they were both really horny by now, but awaiting your next move rather than making one on their own. Perhaps they enjoyed being handled like that, or they simply wanted to see just how far you'd go, and find out which one of them you prefered the most...