Yes

With your mouth covered you hear your sister say ‘Keira? are you watching me?’ and you open the door and walk in with your wobbly legs and your wetness soaking through your grey joggers, you go red and can’t make eye contact and ask ‘h- how long have you had err, a penis?’ she looks at you and says ‘i’ve had it ever since i was born’ she grabs her dick and shows it to you ‘you wanna come feel it?’ she says shyly. You walk over to her slowly and wobbly and hesitantly grab Sarah‘s big dick, you can’t fully wrap your hand around it and your pussy throbs and she notices, your sister grabs you by the back of your head and pulls you in for a kiss and you feel her 12 inch dick press against your belly, it’s massive hard size pokes your tummy and you feel the warm ooze leak out onto you while she kisses you