Seems mostly fine too. Can't speak Spanish for shit so I'm trusting you with that.
They’re kissing while lying down on the couch, Luz on top. Guy’s hand is on Luz’s small butt and squishes it. Luz yelps with surprise.
Guy: Sorry. I just wanted to grab it for a while now.
Luz: Whu-? No, it’s alright. I-I-I was just surprised.
Luz (Thinking): Oh man, it’s like that one really dirty Sonic/Amy fic I read the other night! Squee!!
Luz gets kissed on the shoulder, drunk with lust and smiling. Then he goes directly to lick her armpits. She’s surprised again and panics a little.
Luz: Wait, don't! They’re sweaty!
Guy: Yeah, well, you smell amazing.
Luz: Don’t say that…
Guy pulls up her t-shirt to reveal Luz’s small tits. She still doesn’t have boobs big enough to fill a bra, so she isn’t wearing one. His hand is touching her ribs.
Guy: Huh, they’re so small and cute.
Luz: Don’t make fun of me…
Guy starts sucking on Luz’s nipples. She’s going crazy.
Luz: No te detengas, chupa más fuerte…
The sucking stops. Luz lies on the couch dripping saliva, while the guy is unzipping his pants.
Luz: Ah, this is way better than reading about Bella and Edward’s honeymoon with mom’s body massag-err-I mean--
His erection is out in front of Luz, whose eyes open wide.
Guy: Look at this, Luz. My cock is throbbing so hard for you.
Luz: Woah, wait! Is this for real? I don’t really know if I’m ready…
Guy touches Luz’s crotch softly with his fingers. There’s a wet spot between her legs.
Guy: You sure? 'Cause you seem so wet right now.
Luz: Eep! W-well that’s because--
Guy takes his shirt to reveal a pretty decent body. Luz melts…
Luz: Ok, maybe a little more.
Luz gets on her knees and grabs his cock carefully, examining it. Her tongue out, she tastes the tip. Slowly she puts it in her mouth deep enough that her entire right cheek is filled with cock.