2 significant others but no kiss yet

i’m 16 and i’ve only dated 2 people which one was a long distance relationship but i haven’t kissed anyone yet. i know i shouldn’t be affected by this but i’m just wondering how i just can’t seem to kiss people ... like i want to but i don’t want to at the same time. plus my sister keeps bragging about her boy “problems” and it makes me feel weird knowing i can’t relate.