Should I get pec implants? Will they look like man-boobs?

See Surgeon. Whether or not you should undergo surgery to augment your chest wall cannot be answered online. If you have concerns about the appearance of your chest wall, best to seek consultation with board-certified plastic surgeons to discuss your goals, options, as well as the potential risk/complications associated with surgery. Best wishes.
It's up to you. No one can tell you get pectorals implants except you. Pec implants are generally solid silicone block implants and stay fairly firm. They can look like female breasts if your surgeon is not experienced in placing them. Always know the risks and limitations associated with this type of surgery.