Lisa steeling herself for the horror to come, all the while getting up on all fours and pointing her taunt kitten butt at you. Shaking it about for extra flair and keeping her tail up and out of the way. Nina watching this with a lot of interest and fingering herself to help things along, getting a free show of her sister getting her butt cherry popped and maybe turned feral? Already moaning to herself as you mount Lisa and get ready to enjoy her butt, making her meep out a little and claw into the bed sheets for support. Feeling your enhanced cock grope at her back door before you begin to slowly push it in, making her back arch painfully as she mewls out in lewd pain. Gritting her teeth and gagging out a lowly mewl as you fit yourself into her tight butt, having to hold onto her hips tightly to prevent her from escaping. Panic soon entering her soul as she tries to escape, as you take your pleasure out of her butt with intense humping, feeling your barbs rake her asshole and only add to her torment. Weeping openly as you try to find a correct pace to hump her in, not being able to find it as Nina moans her own head off, watching this while having her fingers buried in her pussy.