Chao!

 It will be a pleasure to link my DNA with that amazing human you are...

She said a deep from the lungs chao to another human right before the next sterility epidemic of mankind...

He knew it: when he can not stop looking the DNA female holder, that is sign of something better, deeper than just a "sex hint". Is the DNA talking to the inside parts, "las entrañas", about there are a DNA match.  

She smiles, thinks, feels, perceives, looks, behave faster, better, accurate that him: she is a one... An Alpha Fertile Reproductive Female Match, and she is waiting (the subconsciousness she) somebody will be like her for engage reproduction...

For sure there are distracted non Alpha males in her surroundings, me among them, and God/The Evolution hopefully will provide soon enough a suitable man for she/her, that amazing Italian cute smart girl I cross today in the park, will have what her uterus is calling and she and this planet needs: BABIES!

That was right before the next mankind epidemic: epidemic of humans with common sense sterility. Humans with planes to take, with plans to do, non with babies to rise...