Should i make a move....?

Me nd this girl use to simi go out in the 9th grade but she always did me dirty.... So 10th nd 11th i didnt pay her much attention.... Now we're senior and shes been flirting wit me and we play around like touchin and stuff but its never to serious now shes comin over my house wit no adults. Should I make a move?? Do yall think thats what she wants me 2 do cause she know no1 is home...