I want to lose my virginity but im afraid of my penis size?

Ok my pens is 4.5 nealy 5 inches long and about 1.3 inches wide, i want to lose my virginity to my girlfriend were both ready but she has had sex before,im afraid she will laugh because it seems small to me, im 16 she is 15 i want to know if i will grow more? Will it pleasure her if she isnt a virgin? Mature answer... show more Ok my pens is 4.5 nealy 5 inches long and about 1.3 inches wide, i want to lose my virginity to my girlfriend were both ready but she has had sex before,im afraid she will laugh because it seems small to me, im 16 she is 15 i want to know if i will grow more? Will it pleasure her if she isnt a virgin? Mature answer please, Nothing regarding our ages either please, i really need help!
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