Kazuto Kirigaya not satisfying Asuna Yuuka during sex because Kazuto has a small cock. Asuna is not happy about Kazuto's small cock and prefers to look for a big cock to satisfy Asuna in her pussy.
Not only the same species but the same family! L2R: half sister 6’8” (probably 7’1” in heels), me 6’2”, mom 6’0” (probably 6’4” or 6’5” in heels), step dad 7’2”