The Guardians of the Galaxy came over to meet The Avengers at Avengers HQ

Peter : well guys these are the Avengers that I'm always talking about

Drax : huh "Avengers" whatever

Gamora : they look like some pretty nice people

Nebula : They do sis

Groot : I am Groot

Rocket : what's Groot is saying is that we're lucky to you guys

Tony Stark comes in

Tony : well I guess we should split up in pairs of two so we could tour them around

So Tony pairs everybody up and Steve is paired up with Nebula

Tony : I need everybody be back here once they're done

So everybody go separate ways for the tour

Steve : Hi I'm Steve Rogers

Nebula : I'm Nebula

Steve : so why did you join the guardians ?

Nebula : well before I used to be evil and worked for this maniac named Ronan and he had a lot a evil intentions in mind and one of them not me being around

Steve : wow

Nebula : yeah then my sister came along and convinced me to join the Guardians and I did

Steve : well it's good that you have someone who really cares about you

Nebula : now how about you ?

Steve : well it's a long story and it would be best not to talk about it

Steve started to show Nebula around and they came to particular spot to talk privately in between of the tour

Private room

Nebula : since I've learned a bit about you now I learn about this "sex" thing that you humans do around here

Steve : uhh I don't think this is the ideal spot to talk about this

Nebula with a disappointed face

Nebula : please I want to learn more about it

Steve : no just no

Nebula then tries her flirting skills

Nebula gets close to Steve

Nebula : I know you want to this "sex" with someone different than me

Steve : no I don't

Nebula connects her lips with his and she starts kissing him but then Steve couldn't resist it and he succumbed to the kissing and they both kissed passionately

Nebula : fuck me

Steve : as you wish

So they kept on kissing each other and with each kiss they remove each other clothing until both of them are naked

Steve : wow you look so beautiful

So Steve kisses Nebula and picks her up and lays her on the air mattress bed

And from there they did their thing

1 hour later

Nebula : that ... that ... that ... was ... good

Steve : yeah it was

Nebula : can I stay with you ?

Steve : sure I guess just tell your sister

So both of them changed back into their clothing and went back to meet up with the others

10 mins later

Tony : where have you both been ?

Gamora : same thing

Nebula : well ... Steve and I are dating

Priceless reactions from everyone

Gamora : how ? How ?

Nebula : well it's a long story but I'm happy being with him and so I'm deciding I'm staying with him on earth

Gamora and other guardians talk

5 mins later

Gamora : well you're my sister and so I don't mind you staying as long we keep in touch

Nebula : yes I will sister

So Gamora and the others depart while Tony is just straight out confused

Tony : I'm just not sure what just happened here but whatever

So Tony leaves

Nebula : that was quite the scene

Steve : I guess

Nebula : I'm happy being with and spending all of my life with you

Steve : same here

So they kissed passionately and from there they kept on having love with each other and later both Steve and Nebula get married and they later have kids

The end