Usually siblings aren't meant to be attracted to others scents but being adopted, when Alban goes into his first heat he ends up uncontrollable. Luca, Ittetsu and Yotsuha are all alphas and living in the same house as them his first heat is intense. With his mind fogged he ends up triggering Luca, the only one at home at the time. He can smell him and ends up searching him out. Luca at the time is playing Minecraft and the abruptly ends. Lucubs are confused but he cant control himself; his alpha instincts take over and he pins Alban to the bed. He asks if he has experience and Alban admits that he made money through being a whore in his timeline. Luca is about to lose his virginity but Alban walks him through it and moans so loud that when his family comes home they can figure out what's going on. Alban keeps asking for it hardeer and deeper and Luca obliges. He can feel his cock pule as he comes inside him and then kisses him deeply before they both regret their decisions, knowing that technically they're family but Alban knows next heat he'll go back to him.