They worship your cock, you make them like it, you take +1 forward.

Jenna and Jessie, on their knees in front of you, in public in the park, take turns worshiping your cock. Jenna shows her sister how she can take you deep in her throat, while Jessie massages your balls with her tongue. Then they switch, and Jenna watches Jessie lick all around your cock head, while she laps at your thick shaft deep into her sweet mouth. "Oh wow," Jessie gasps, as she comes up for air, "his cock is so big! And it tastes so good!", and she dives back down to keep right on sucking on your cock. "Mm, you look so good sucking my boyfriend's big cock," Jenna purrs, "just wait till you taste his cum!"
"Oh yeah," Jessie moans, I want his hot cum so bad!"
"Cum all over us baby," Jenna whispers, "Cum in our mouths."
The two sisters look up at you as they share your cock, both of them lapping at your head, their little pink tongues darting fast and wet. You can't take it any more, you're going to explode all over both of their faces.