My period came on September, 23, and things would have to change. We already had the contraceptive foam, and I sterilized the syringe, so we were set....However, it was a bit of a chore, thrown in to the mix. Mark said it tasted horrible, and so oral sex wasnt available after it was in use. Mark carried the package in a small pouch in his backpack/bookbag, and no one ever suspected. It was not in my room except when it was needed, so my parents would not have found it, even if they had suspected.. We decided to dine together that evening. Neither of us had seen our friends for thirty six hours and figured everything was fine. Dinner was casual and Monica wore a fantastic low cut blouse with slacks. Out of sweats, Monica had a great figure and looked extremely hot. We dined and then went to the sixties lounge. We loved the slow dances and Monica smelled great and felt fantastic. After a few dances, we decided to walk back to the stern of the ship. Alone on the stern, we turned and kissed. Then again she revolve the bottle and then it stopped in front of me then i said dare and she removes her panty and then she make space between her legs and then she putted her figure on her pussy and started rubbing it and said me to lick her pussy .I was first shocked and then think to grab this chance and i move my head between her legs and touched her pussy with my tongue and she moan loudly......ohhhhhhhhhhahhhhhhhhhhhhhhhhh.......then i started tasting her juice in wild manner and she. “However, if you let me do the same thing to you, then I think we are fine,” she grinned.“Deal!” Alex said.The girls both agreed in advance that there would be one condition implanted in their heads.“Work together as sisters and not against each other. We are a team,” Alex suggested.“What about try not to bore the shit out of each other?” Hailey countered.Alex said that the condition had to be measurable. The girls finally decided on something straightforward for their first mental.