To make sure my girlfriend doesn't find out... I spent a week secretly having cheating sex with a defenseless and bold naughty older sister Kyoka Tachibana

The protagonist engages in secretive, cheating behavior with his sister, Kyoka Tachibana, while his girlfriend, Ayaka, is unaware. They spend a week together, developing an intimate relationship and expressing pleasure and desire.

1. [0:42]The protagonist and his sister, Kyoka, engage in kissing and potential foreplay. · kissing
2. [15:28]Kyoka licks the protagonist's ear and he potentially fucks her pussy.
3. [36:28]The protagonist and Kyoka share a kiss. · kissing
4. [56:55]The protagonist is gentle with Kyoka, implying potential intercourse.
5. [1:22:22]Kyoka expresses desire for the protagonist's muscular physique, implying potential intercourse.
6. [1:27:13]The protagonist and Kyoka engage in implied intercourse, expressing pleasure.
7. [1:55:26]Kyoka and the protagonist continue to express pleasure, implying ongoing intimacy.
8. [2:04:09]The protagonist discusses repeating sexual acts with Kyoka, implying continued intimacy.