My colleague is very open to me and discuss everything with each other. The following incident happened day before with him:

He has a girlfriend.. They have got intimate a no. of times but never had an intercourse. Day before when they got intimate.. he got nude without any clothes, the girl was in a pant and was wearing an underwear too.. he ejaculated outside on her pant which acidently penetrated inside her pants and her underwear... Now what are the possibilities of girl becoming pregnant under this condition??? They both are scared. Please help and clarify.

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