Your risk for HIV is extremely low. Sharp instrument injuries that transmit HIV (mostly in health workers) generally involve visibly contaminated (bloody) instruments and with substantial injury, not a superficial needle stick.
However, it isn't possble to say this was zero risk and it would be a good idea to see an expert ASAP to discuss PEP; some might recommend it, others probably wouldn't. I think you're also on the right track to ask the other fellow to be tested. You can do both: sometimes PEP is started (the sooner the better) then stopped after a day or two if it becomes known there was no exposure, in this case if he tests negative. If he is willing, you could go together to the doctor/clinic to discuss both PEP and testing him.
Oh gosh I was hoping not to have to take PEP I was hoping I was just over reacting !!! I feel like an idiot I was hoping that because nothing was injected and only the needle tip pierced slightly with no visible blood I would be ok! The needle tip had been exposed to air for quite a few seconds before it pricked me would that make a difference ??
Thanks
You don't necessarily need PEP. But you do need to see a professional in person to decide, not rely on this or any other forum, website, etc.