Is this too much sex for 16 year olds?

I have three friends and all of them had have sex. Beth's had sex with 8 guys and she's only 16 and started when she was 14. Brittney is 16 almost 17 and has had 5 and started when she was only 15 same with Rachel she's had 5 started at 15 and she's only 16. I'm still a virgin unfortunately...
Update: Is that too much sex for there age though???
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