slapping hitting

any help and/or advice about rough kinky sex. iv been looking on the net but i cant find anyhting really helpfull. my girlfreind i finally getting to the point were shes being slowly more open sexually to me. and she likes to be slapped and chocked a little. and recently shes been slapping me and hitting/diggin into me. so i was just wondering if you have any thoughts or adivce on helping me be a better lover or suggestions on this she might like or something we might try. thanks

                                                                                                                            -Sexkid