<human>: So here goes, my gf of 2 years and i were talking about our sex, and she tells me , "for some reason it was different last night, you felt allot bigger than normal in that position her legs all the way up  to her chest , me holding them there , (I'm pretty big by her standards) . But you still did the same moves, you're predictable . I asked if it was a bad thing and i she said no, she went on to state the order in which i do my moves, Oral > Missionary  (me on top) Doggy then Missionary again but her on top. I've shown her different ideas about what i'd like to do, and i feel like i do mix it up, e.x fucking her while she's on her side , her sitting on my face . I want to do more physical things like lifting her up on a wall and fucking her but i'm afraid i'm not strong enough, should i be worried , and what fun moves do you folks recommend?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: GF called me predictable , but i feel like i do mix it up , is she just being forgetful or should i be worried and reading some sex guides ?