Well, you won't let her get away now

As you're closing in, you see Lucy sensually swaying her hips and then start lifting her leg to step away from the fence and back into her garden. Before she gets that far you're already right next to her however, rushing the last few steps to reach her, and gently placing your hand on her thigh to keep at least half of her on your side of the fence.

"Hmmm...?" She murmurs with a little smile on her lips as she glances down to where your hand is still touching her naked skin, and looks like she's pondering whether she should stay or try and move.

Just then her phone beeps again, making the decision for her as she stops to lift it back up to her face again. This time she wets her lips, and is clearly flustered about something as she reads the message, but seems rather ignorant of your hand travelling slowly further up her thigh to her hips.

"What's it saying...?" You whisper in her ear as you step in closer, pressing your body up to her back and effectively shutting off her route of escape. She doesn't reply however, but simply glance back at you over her shoulder, and then cautiously lower herself until she's leaning her hands on the fence again and pushing her rear back into your crotch.

As your cock nestle between those lovely buttocks you can't really think of anything but the sensations of her naked skin against yours, and of how much you'd like to stuff yourself inside of her wet little pussy. Before that however, you reach down and grab at her tits, enjoying their firmness and weight in your palms, while drawing a soft moan from her lips as you roll those pert little nipples between your fingers.

"Won't you share what they're saying...?" You insist while grinding your cock up through the crack of her ass, savouring their tightness as they clench around your shaft. "Is it some kind of game that you're playing? A bet of some kind? Are they telling you what to do, by texting you dirty messages...?"

"Mmm-hmm..." She just grins back at you in reply, without revealing a thing about what she's up to. Instead it seems like it's all up to you now, and you wonder if you should interrogate her further, or simply put her willingness to test and shove your cock into that sweet little teenage pussy of her's...