I just desire to have BJ with new methods ! Help me

I M(20) is currently in a very healthy relationship with my sweet gf and we usally have sex a couple times in a month and we both enjoy having it and I love getting BJs from her and she also just town on while giving it but the problem is it’s every time that vanilla sucking , well there is no problem in that but i just desire to try new methods for that Exhilarating feeling but i just can’t figure out what else can be done in addition to just sucking in and out . I just wanna get new ideas how a simple BJ can be turned into a triggering BJ.