My boyfriend's friend filled me with cum

My name is Maria, I’m 19 years old, and I’ve been with Alejandro, my 20-year-old boyfriend, for almost a year. He’s a sweet, attentive guy, the kind who sends you good morning texts every day and holds you tight when you sleep. Sex with him is… fine. Tender. Quick. Sometimes I cum, sometimes I fake it. But he’s never made me feel like a real whore.

That all changed three weeks ago.

His name is Diego. 28 years old. Friend of one of Alejandro’s cousins. Tall, with three-day stubble, a deep voice, and big hands. The first time I saw him was at a party at that cousin’s house. Alejandro was next to me, holding my waist like always, but Diego looked at me in a way that made my panties wet within seconds. He didn’t smile. He just watched me like he already knew he was going to fuck me.

That night we exchanged numbers “just in case.” Two days later, he texted me.

And yesterday… yesterday it happened.

Alejandro had a final exam and stayed late studying at the university library. He told me he’d be home around one. It was eight at night when I texted Diego back: “Come.”

He arrived in less than twenty minutes. The moment I closed the door to my apartment, he pushed me against the hallway wall and kissed me hungrily. Not like Alejandro, who always asks permission with his eyes. Diego took what he wanted. His hands went straight to my ass, squeezing it hard while his tongue invaded my mouth.

“Does your little boyfriend know you’re about to get fucked by someone else?” he whispered in my ear, biting my earlobe.

“No…” I moaned, and that answer made me even wetter.

He took me to the couch where I had kissed Alejandro so many times. He pulled off my pajama shorts and panties in one tug. He knelt down, spread my legs, and buried his face between them. His tongue was expert, brutal. He ate my pussy like he was thirsty, sucking my clit and shoving two thick fingers inside at the same time. I came in less than two minutes, trembling and screaming his name.

When I recovered, I watched him pull out his cock. It was bigger. Thicker. Veiny. Perfect. Alejandro is fine, but this… this was something else.

“I want you to watch me while I put it all in,” he said.

He sat on the couch and made me get on top. I lowered myself slowly, feeling him open me up. I moaned loudly, almost painfully. I was so wet that he slid all the way in at once. I started riding him, my tits bouncing in front of his face. Diego grabbed them, sucked them, bit them.

“Tell me what you are,” he growled.

“I’m a whore…” I panted. “Alejandro’s cheating girlfriend.”

“Louder.”

“I’m a whore who’s cucking her boyfriend with a bigger cock!”

That turned him on. He lifted me like I weighed nothing, put me on all fours on the couch, and fucked me from behind like an animal. The sound of his pelvis slapping against my ass filled the whole room. He spanked me hard, pulled my hair, called me everything: slut, horny bitch, cuckquean. And I came over and over, thinking about the look on Alejandro’s face if he knew that another man was using me as his sex toy right then.

When he was about to cum, he put me on my knees in front of him.

“Mouth open.”

I obeyed. He came on my face and on my tongue, thick and abundant. I swallowed some, the rest dripped down my chin and onto my tits. I felt dirty. I felt alive.

Afterward, I cleaned up a little, but I left enough evidence. A hickey on my neck. The smell of sex on the couch. My pussy still swollen and red.

Alejandro arrived at one thirty. He found me in bed, pretending to sleep. He gave me a kiss on the forehead and lay down next to me, hugging me.

I smiled in the darkness, still feeling Diego’s semen drying between my legs.

Maybe tomorrow I’ll tell him. Or maybe I’ll let him find out on his own.

For now… I just want Diego to text me again.