Want to get bigger muscles and look awesome? It's very simple. You only have to do one thing: get stronger.
How do you get stronger? By using a technique called progressive overload where you increase the weight on all of your big compound exercises by 5 pounds (or 2.5 kilograms) each time you walk in the gym and perform that particular exercise. This can be done all the way from a 105 pound squat to a 315 pound squat, which would make your legs and ass way bigger! (Women love a great ass)
I'm not saying you'll look like a freak beast, but you can definitely achieve a very aesthetic look in a year if you do everything right
Expect a physique like this or better!
I bet you're wondering where to start? Well, you're in luck, because I've been in the lifting world for quite a while and have 3 proven programs that have been around for a while. They will definitely make you look amazing and healthy within 6-12 months of solid lifting 3 times a week. Choose any you like.
https://www.muscleandstrength.com/workouts/jason-blaha-ice-cream-fitness-5x5-novice-workout - Maximum results, requires a lot of time and effort
https://stronglifts.com/5x5/ - Great if you don't have much time
https://www.google.co.uk/search?q=alphadestiny+novice&oq=alpha+destiny+nov&aqs=chrome.1.69i57j0l5.3523j0j4&sourceid=chrome&ie=UTF-8 - Almost maximum results
All of these programs will give you amazing results. They will all make you a lot stronger and muscular!
Good luck! If you have any questions, please comment below and I will answer.