I was woken up by noises coming from the Homo Erectus stall... Mother and my colt woke up too... but Sylvia wasn't there; the door to our stall was broken. There were a lot of moans and grunts... then I saw Maiden Mayra and Nora running past, and we went after them. Upon arriving, we saw a beautiful sight: My sister had mounted the steer Marcus, and the bull Tom had mounted her. The three of them were thoroughly enjoying themselves and copulating with great energy. Domina Astrid, Lady Valkyria, and Doctor Lady Amparo ed the group of spectators. We didn't understand why my sister was letting a male mount her, and Lady Amparo explained: "What's happening is that Sylvia has gone into heat, and the Erectus have too. They're so lustful that they need to satisfy themselves any way they can. Besides, she's connected with 50 percent of her blood; let's not forget that she's half Erectus. She'll probably fertilize the steer, but she won't get pregnant by the bull. , she only has male reproductive organs. I'd like to see if she mounts the bull and if he lets her. Astrid, you might be creating a new variant of this breed." "What's happening is that Sylvia has gone into heat, and the Erectus are too. They're so lustful that they need to satisfy themselves however they can. Besides, she's connected with 50 percent of her blood. Let's not forget that she's half Erectus. She'll probably fertilize the steer, but she won't get pregnant by the bull. , she only has male reproductive organs. I'd like to see if she mounts the bull and he lets her. Astrid, you might be creating a new variant of this breed." We were all shocked...and we started masturbating while watching the hot scene...that's how the early morning ed, and when dawn broke, the young bull collapsed. The bull pulled his enormous cock out of my sister's ass and fell...my sister was still erect and ejaculating large amounts of semen. DA - She's so perfect...she's the stud any ranch would want...Vivian, you always deliver quality. (He caressed my mother and kissed her while he masturbated her)

Then my sister turned towards the Bull...she bared her teeth and he adopted a ive pose...now she was the Alpha. She quickly took him from behind, penetrated him, and bit his neck...by Futana, the energy those two had was something never seen before...the barn was filled with the smell of semen and perspiration...it was very exciting... Then Lady Amparo exclaimed: LA: Look at the Bull!...look at his abdomen! It's fascinating! Marcus began to tremble...his muscles grew and his abdomen began to swell, his horns fell off and larger ones began to grow on his sides, very similar to his father's...a beautiful virile mustache began to grow on his handsome, youthful face...when he stood up he had a large belly LA: Oh glorious Futana! The miracle of life! He's pregnant! He's a beautiful bull now!...I need to examine him! DA - You say Sylvia has impregnated him? And what will come of that cross? LA - ...Astrid... I already told you that Sylvia is a fantastic stallion and she's going to bring you a lot of joy... we'll have to wait a few days for the males to ejaculate... they could produce Erectus calves or heifers like Sylvia... Nora, go prepare the room, today will be a long day. MN - Yes, Lady Amparo, we'll have a loooong day (she said wearily). While my sister continued to ravage the bull, but he forced her to keep penetrating him, he was very aroused... his roars of pleasure were exciting. 

A few minutes later, the act ended. My sister collapsed onto Tom's back, and he turned over, and they began kissing and licking each other. Instinctively, Marcus ed the orgy. In all that ion, I didn't realize I had a semen collector on my cock, and I'd already filled about five. Maiden Mayra had put them on me so as not to waste any of the product. She's excellent at her job. The three of them lay on the floor. We noticed Tom's belly was also swelling, and Lady Amparo started clapping. LA-Yes! She got Bull pregnant too! This girl is one of a kind! DA-That's my girl! Well done, Sylvia! Sylvia looked at us and smiled... then she fainted and started convulsing. "It can't be! What's happening to her?" We were scared, but Lady Amparo remained calm. DA-Amparo! What's happening? Go help her! LA-Hahaha... calm down, my Lady... observe... observe the marvel of Futana's creation... Then Sylvia began to rise... her breasts began to grow, her body began to gain muscle mass, and two beautiful and imposing horns began to sprout from her sides... she let out a very powerful roar and began to urinate on the two males... then her penis became erect and larger... she began to masturbate while the two males opened their mouths, swallowing the semen that fell... now she was even more beautiful... LA- My Lady, I told you when she was born, Sylvia is a unique specimen... look at the beauty she has become... DA-... I am amazed... she is more beautiful than before... but... will she be dangerous now? 

Instinctively, I crossed the fence. I don't know if it was excitement or recklessness. I didn't know how she would react. Would she recognize me? Was she still sweet Sylvia? She looked at me and showed me her fangs. Then my animal side understood the warning. I lay ively on the ground, watching them all stand frozen behind me. Then I felt her sniff me, and her beautiful tongue entered my sphincter, causing a semi-erection and ejaculation. Then she brought her mouth to my penis and licked the few drops. Immediately, she stood me up and began to lick me. She was my tender sister Sylvia again. Domina Astrid approached and spoke to her. DA-Sylvia...my beautiful girl, I am your Domina...come, daughter... And Sylvia, without letting go of me, knelt at her feet, emitting moans of pleasure. Her body was just as sculpted as the Domina's. They took her and the males to Lady Amparo's veterinary clinic.