Hi, can anyone tell me what the word "sonuyup" means? I can´t seem to find any reference to it anywhere, but I saw it in context of this "Aldatmak hata değildir, kimse yanlışlıkla sonuyup sevişmez." Please could you translate that text for me so I can better understand?

Teşekkürler in advance!

I can be wrong but I think it´s "Soyunup" and not "Sonuyup"

The sentence means (I´m not a native speacker)

"Infidelity is not an error, nobody get naked (undressed) making love accidentally"

it must be soyunup.right.

Aldatmak hata değildir, kimse yanlışlıkla soyunup sevişmez.

To deceieve is not a mistake because noone get naked accidently then make love.

Aaaah I see, now it makes sense to me! I was able to translate the rest of the text but that word stumped me!

Çok teşekkürler Ahmet ve Emine 

The -up suffix has the same meaning as the suffix of the next verb in the sentence and can be translated as ´and´. 

See for further explanation here:

http://www.turkishlanguage.co.uk/gerundbanana.htm

Examples: 

Dükkana gidip ekmek alıp bana getirirsin. = You go to the shop, buy bread and bring it to me. (Because ´Dükkana gidersin ekmek alırsın bana getirirsin.´ is obviously too much trouble )

Eve gidip çay içiyorum. = I´m going home and drink tea.

Arabaya atlayıp çarşıya gidiyoruz. = We jump into the car and drive to the centre.

Then again it is similar in English: I may have been talking and driving at the same time.

Yes but that´s 3 words. That IS too much trouble haha