"Even though she's right near me..." She's completely defeated by her little devilish lady's sweet voice dirty talk and nipple torture and is cheating and creampied

Since my family wasn't coming back, I stayed at her house today. Her older sister appears in front of me, who is determined to have sex until I get home! ? Apparently my trip plans have been cancelled at the end... Then the lady suddenly seduced me in a cute voice, "I've got more sex than you?" ? Furthermore, I've been playing with the nipples of my erogenous zones...I wonder if she'll do it if she invites me to her by her older sister, who has better looks, style and technique than her. No way?