How to fuck?

I could put the same photo as yesterdaymorning. Yes again a morning erection but this time for an other reason. Last night the wife and me fucked altough it was a little strange. I was already sleeping and on a moment i feel my wife touching me. Well since IM a sensible person i react right away on that by starting to massage her labias. After a few minutes she told me it hurted. Uuy i tought she regret her action. She got out of the bed and served herself a glass of water, coming back to me and offering it. Then she start to touch me again gentle. I started a sort of massage in the back of her with my long nails. All well till the point i touched her face, she got off of me again and told me it hurts since she had toothache. I pushed her on top of me and she started to massage me with her pussy. I got inside and came almost in her, i pulled my dick outside and i ejaculated. We dont want babies. I started to giving head to my wife and my dick stayed hard so after she came we could do a decent fuck with condom.