Special Thanks to Edgar C. For translation help with local terms!

Dick: "La verga" (most common), "el pito" (usually a small dick) 

Buttocks: "buttocks"

Ass and Asshole: "culo"

cum: "leche" (milk) or "mecos", both are slang for semen, leche is most common.  

Naked: "naked"

Fuck me: "fuck me"

"Coger" is by far the most common word for "to fuck" in Jalisco. "Follar" and "joder" are rare here. "Coger" is sometimes spelled "cojer", but they sound the same and "coger" is correct. It does not mean "to fuck" in most countries, but is the most common word here.

I want to fuck you: "I want to fuck you"

Do you want me to fuck you?: "do you want me to fuck you?"

I want to suck your dick: "I want to suck you" / "I want to suck you"

Do you want to suck my dick?: "Do you want to suck me?" / "Do you want to suck me?" / "Do you want to suck me?"

I want your cum: "I want your milk" is more common than "I want your semen" -

Do you want my cum? "Do you want my milk?"

Bareback: What is common is "cogeme a pelo", which is "fuck me bareback", or "dame leche por dentro" / "dame mecos por dentro" / "finisas por dentro", they all mean "cum inside".  

Do you like bareback? "Do you like it bareback?

Do you want to fuck bareback? "Do you want to fuck bareback?"

Can I cum inside?: "Can I cum inside?

Do you want my cum inside?: "Do you want my milk inside?" or "Do you want me to finish inside?"

Use a condom: "usa un condón" is the right verb form - "usar un condom" is the infinitive, "to use a condom."

Can you host? "Can you put me up?" spoken as a question means this. But almost always men just say "tienes lugar?", "do you have a place?" 

I can host: "I have a place", "I have a place". 

Are you into three ways?: "Do you like trios?"

Eat my ass: "eat my ass" or "give me black kisses" - "black kisses" is rimming. 

I want to eat your ass: "I want to eat your ass"