Join the lesbian display

Casey takes Nicole in her arms, and they kiss, tenderly at first, and then with more passion. Their hands start groping the others body. It's so hot, you silently unzip and pull out your stiffness. Nicole puts her hands on Casey's shoulders and pushes her hard against the wall. She slips her knee between the skater girl's legs. They are soon humping and panting, squeezing each others tits as they kiss. You fondle your junk as you watch.

When they start putting their hands down the others skirts, you step out from your hiding place and clear your throat. "Ahem, look who's here?"

Both girls gasp in shock and turn to you, and both then gasp again, but in arousal this time at seeing your rigid shaft. "I saw you had a party going here and wondered if I could join?"