During a girl's first sexual intercourse, the hymen is broken or ruptured by the penetration of the penis, there's usually minor bleeding or none.
Other sign would be an effortful penetration for the man.
However some girls might not have any of the signs above.
"First Night" is when a girl first loses her virginity.
Tell him that you lost your virginity when over-enthusiastically inserting a tampon.
The plot of American Pie (the original one, 1999) is about four teenagers who make a pact to lose their virginity by Prom Night. Is that what you were thinking of?
All day & all night
A stork deliver their babies to them over night in a bucket.
Deflowering the bride is an old term when the bride and groom are married; spend their wedding night together and she loses her virginity.
He kisses a prostitute becauses Cook brings him to a night club to lose his virginity.
It means that he thinks your saving your virginity for marriage for your honeymoon night with your husband.
night
a whole night
1988 that we know of (they kissed the night she won the Eurovision Song Contest) (she was 20 yrs old)
No alcohol involved.